EP 4023686 A1 20220706 - BINDER FOR ELECTRICITY STORAGE DEVICES IMPROVING DISPERSIBILITY OF CONDUCTIVE ASSISTANT
Title (en)
BINDER FOR ELECTRICITY STORAGE DEVICES IMPROVING DISPERSIBILITY OF CONDUCTIVE ASSISTANT
Title (de)
BINDEMITTEL FÜR STROMSPEICHERVORRICHTUNGEN ZUR VERBESSERUNG DER DISPERSIONSFÄHIGKEIT EINES LEITFÄHIGEN ASSISTENTEN
Title (fr)
LIANT POUR DISPOSITIFS DE STOCKAGE D'ÉLECTRICITÉ AMÉLIORANT LA DISPERSIBILITÉ D'UN ADJUVANT CONDUCTEUR
Publication
Application
Priority
- JP 2019156698 A 20190829
- JP 2020057233 A 20200327
- JP 2020125295 A 20200722
- JP 2020032585 W 20200828
Abstract (en)
An object of the present invention is to provide a binder which exhibits excellent dispersibility of a conductive assistant; a slurry composition and an electrode, each of which uses this binder; and an electricity storage device which is provided with this electrode.The present invention relates to a binder for an electricity storage device, in which a loss tangent tanδ in a linear region of an aqueous dispersion liquid of 0.5% by mass of the binder and 4.6% by mass of a conductive assistant satisfies tanδ > 1 in a strain dispersion measurement under measurement conditions of a measurement temperature of 25°C and a frequency of 1 Hz, and the conductive assistant is an acetylene black having an average particle diameter of 30 nm or more and 40 nm or less and a specific surface area of 65 m<sup>2</sup>/g or more and 70 m<sup>2</sup>/g or less; a slurry composition and an electrode, each of which uses this binder; an electricity storage device which is provided with this electrode; and the like.
IPC 8 full level
C08F 220/00 (2006.01); C08F 236/00 (2006.01); H01G 11/06 (2013.01); H01G 11/38 (2013.01); H01M 4/04 (2006.01); H01M 4/13 (2010.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/62 (2006.01)
CPC (source: CN EP KR US)
C08F 8/44 (2013.01 - EP); C08F 220/06 (2013.01 - EP US); C08F 220/10 (2013.01 - KR); C08F 220/20 (2013.01 - EP); C08F 220/281 (2020.02 - US); C08F 236/00 (2013.01 - KR); C08K 3/04 (2013.01 - KR); C08L 33/04 (2013.01 - KR); C08L 33/08 (2013.01 - US); C08L 33/10 (2013.01 - US); H01B 1/24 (2013.01 - US); H01G 11/06 (2013.01 - KR US); H01G 11/38 (2013.01 - EP KR US); H01G 11/50 (2013.01 - EP); H01M 4/04 (2013.01 - EP KR); H01M 4/0404 (2013.01 - EP); H01M 4/0409 (2013.01 - EP); H01M 4/13 (2013.01 - EP KR); H01M 4/133 (2013.01 - EP KR US); H01M 4/134 (2013.01 - EP KR US); H01M 4/62 (2013.01 - EP KR); H01M 4/621 (2013.01 - EP); H01M 4/622 (2013.01 - EP US); H01M 4/623 (2013.01 - CN EP KR); H01M 4/625 (2013.01 - EP US); H01M 10/0525 (2013.01 - EP US); C08F 2800/20 (2013.01 - US); C08K 2201/006 (2013.01 - KR); C08K 2201/011 (2013.01 - KR); H01G 11/06 (2013.01 - EP); H01M 2004/021 (2013.01 - EP US); Y02E 60/10 (2013.01 - EP KR)
C-Set (source: EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 4023686 A1 20220706; EP 4023686 A4 20231004; CN 113711393 A 20211126; CN 114270572 A 20220401; JP WO2021039959 A1 20210304; JP WO2021039960 A1 20210304; KR 20220042407 A 20220405; KR 20220056155 A 20220504; US 11735737 B2 20230822; US 2022181633 A1 20220609; US 2022190343 A1 20220616; WO 2021039959 A1 20210304; WO 2021039960 A1 20210304
DOCDB simple family (application)
EP 20858674 A 20200828; CN 202080029438 A 20200828; CN 202080059398 A 20200828; JP 2020032585 W 20200828; JP 2020032586 W 20200828; JP 2021543036 A 20200828; JP 2021543037 A 20200828; KR 20217034445 A 20200828; KR 20227006402 A 20200828; US 202017637650 A 20200828; US 202217677964 A 20220222